%0 Journal Article %A David Sprows %T Homeotopy groups of compact 2-manifolds %J Fundamenta Mathematicae %D 1975 %P 99-103 %V 90 %N 1 %I mathdoc %U http://geodesic.mathdoc.fr/articles/10.4064/fm-90-1-99-103/ %R 10.4064/fm-90-1-99-103 %G en %F 10_4064_fm_90_1_99_103